it's not that they can't afford to buy one. it's that they're not available. and now a lot of other tlds have gained traction so it's now reasonable to consider others.
I would assume that for most foo.ai domains, foo-ai.com would also be available. So it’s more about naming preferences, and sometimes lack of imagination for coming up with an available name.
I would assume that for most foo.ai domains, foo-ai.com would also be available. So it’s more about naming preferences, and sometimes lack of imagination for coming up with an available name.